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From the factory, what type of clamps were used on the PCV line?
I “think” small Corbin clamps. EDIT: Looks like I “thought” wrong. Learned something new today!
Anyone have a all original Resto?
Yes, no clamps.
Never would have guessed
It runs at near atmospheric pressure. Up to say 17inches vacuum, near 6/10 psi, and the pressure is on the outside. So as long as you use PCV vacuum hose, or EFI hose, you should never have a problem. Regular fuel line will collapse under suction when warm.
No clamps on my ‘69 383. I’m the second owner, still talk to the first one.